Artswow Custom Jack Skellington Nightmare Before Christmas Zippered Pillowcase Covers Standard Size 20x30 Inch (Twin Sides) Material : 50% cotMaterial : 50% cotton, 50% polyester Twin sides and size 20" x30" Pillow insert are not included Personalized pillowcase,custom zippered cushion case. Pre-shrunk fabric, washable at 60 degree centigrade